How to Call Guam
From most countries, dial 00 or + (on mobile). From the US/Canada, dial 011.
1
Example: 1 XXX XXXX
With PhoneTheWorld, simply enter the full number including +1 and click call. No access codes needed — we handle everything.
About Guam
ISO Codes
Guam Calling — FAQ
What is the country code for Guam?
The international dialing code for Guam is +1. When calling from abroad, dial your international access code (011 from the US/Canada, 00 from Europe), then 1, followed by the local number.
How do I call Guam from abroad?
To call Guam, dial your country's international access code, then +1 (the country code for Guam), followed by the local number. For example: 1 XXX XXXX. With PhoneTheWorld, just enter the full number including +1 and click call.
What is the ISO code for Guam?
The ISO 3166-1 alpha-2 code for Guam is GU. These codes are used internationally for identification purposes.
Can I call Guam from my browser?
Yes! PhoneTheWorld lets you call Guam directly from your browser — no app required. Just sign up, add credits, and dial any Guam phone number. Rates start from 8¢/min.
How much does it cost to call Guam?
With PhoneTheWorld, calls to Guam start from 8¢ per minute. You only pay for what you use — no subscriptions, no hidden fees, and your credits never expire.